The Third Queen (三ノ妃, San-no-Kisaki) is the third-ranked wife of the Mikado. She comes from House Yuguraku[1], but her first name is never given.

In contrast to the First and Second Queens, the Third Queen has only daughters and no sons[2]. Her daughters are not eligible to inherit the throne, thus it becomes vital for Chagum to be recovered after Prince Sagum's death.

Eventually she does give birth to a son, Tugum. Little else is known about the Third Queen.